The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 2009
Filed:
Sep. 26, 2003
Yohichiroh Watanabe, Fuji, JP;
Masanori Suzuki, Shizuoka-ken, JP;
Tsunemi Sugiyama, Numazu, JP;
Hiroshi Yamashita, Numazu, JP;
Takuya Saito, Numazu, JP;
Naohiro Watanabe, Shizuoka-ken, JP;
Masami Tomita, Numazu, JP;
Shigeru Emoto, Numazu, JP;
Shinichiro Yagi, Numazu, JP;
Hiroshi Yamada, Numazu, JP;
Toshiki Nanya, Mishima, JP;
Tadao Takigawa, Shinshiro, JP;
Yohichiroh Watanabe, Fuji, JP;
Masanori Suzuki, Shizuoka-ken, JP;
Tsunemi Sugiyama, Numazu, JP;
Hiroshi Yamashita, Numazu, JP;
Takuya Saito, Numazu, JP;
Naohiro Watanabe, Shizuoka-ken, JP;
Masami Tomita, Numazu, JP;
Shigeru Emoto, Numazu, JP;
Shinichiro Yagi, Numazu, JP;
Hiroshi Yamada, Numazu, JP;
Toshiki Nanya, Mishima, JP;
Tadao Takigawa, Shinshiro, JP;
Ricoh Company Limited, Tokyo, JP;
Abstract
A toner composition including toner particles including a binder resin including a modified polyester resin, and a second resin having a weight average molecular weight of from 2,000 to 10,000; a colorant; a release agent; and a particulate material which is present at least a surface portion of the toner particles while embedded into the surface portion, wherein the binder resin has a glass transition temperature not lower than 35° C. and lower than 55° C., and wherein the particulate material has an average particle diameter of from 0.002 to 0.2 times that of the toner particles. A developer including the toner composition and a carrier having a layer thereon which includes at least an acrylic resin and a silicone resin, and a method for fixing an image of the toner composition are also provided.